Sealing ring



FIG. 1 is a perspective view of a sealing ring showing our new design;

FIG. 2 is a plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a reference plan view thereof;

FIG. 6 is an enlarged partial detailed view of segment 6,7 of FIG. 5; and,

FIG. 7 is an enlarged partial detailed perspective view of segment 6,7 of FIG. 5.

The rear view, right side view and left side view are omitted since those views are identical to the front view. 

The ornamental design for a sealing ring, as shown and described. 